<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>太空飞机大战 - Space Shooter ECS</title>
    <style>
        html, body {
            margin: 0;
            padding: 0;
            height: 100%;
            overflow: hidden;
            background: #020612;
            color: #00ffff;
            font-family: 'Courier New', monospace;
        }
        #fps {
            position: fixed;
            left: 8px;
            top: 8px;
            background: rgba(0, 0, 0, 0.6);
            color: #00ff00;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            font-family: monospace;
            z-index: 1000;
        }
        canvas {
            display: block;
            background: #020612;
        }
    </style>
</head>
<body>
    <div id="fps">60 FPS</div>
    <canvas id="game"></canvas>
    <script src="/bundle.js"></script>
</body>
</html>